ladish/grauph/src/libs/engine/EventSource.h

53 lines
1.3 KiB
C++

/* This file is part of Om. Copyright (C) 2006 Dave Robillard.
*
* Om is free software; you can redistribute it and/or modify it under the
* terms of the GNU General Public License as published by the Free Software
* Foundation; either version 2 of the License, or (at your option) any later
* version.
*
* Om is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef EVENTSOURCE_H
#define EVENTSOURCE_H
namespace Om {
class Event;
class QueuedEvent;
/** Source for events to run in the audio thread.
*
* The AudioDriver gets events from an EventSource in the process callback
* (realtime audio thread) and executes them, then they are sent to the
* PostProcessor and finalised (post-processing thread).
*/
class EventSource
{
public:
virtual ~EventSource() {}
virtual Event* pop_earliest_event_before(const samplecount time) = 0;
virtual void start() = 0;
virtual void stop() = 0;
protected:
EventSource() {}
};
} // namespace Om
#endif // EVENTSOURCE_H